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Changing final drive ratio - thoughts?

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Old 03-28-2021, 10:09 PM
  #31  
Schocki
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Went for a drive on Saturday and here are the numbers:
  • ​​Speed 96 km/h or 60 mph
  • Cruise on
  • 1950 RPM on the tach
  • S4 2.2 final gear ratio
  • Stock rims and tires (Michelin Pilot Sport N3)
Old 04-12-2021, 06:17 PM
  #32  
6.0-928S
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Originally Posted by User 4521
A guy in canada years ago did a 3.09 custom gear set in a 928.
I spoke to him ( Jamie Houseman - https://www.racegearbox.com/ ) tried to arrange a group price for these years ago. Was too pricey for most guys. Search the thread in the archives. No takers.
Old 04-13-2021, 05:15 PM
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john gill
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Hello ,
Yes so Did I a few years , he wanted a sample of the gear shaft for sample as I am Australia , was too difficult here for logistically , I am interested if there are any takers again taker , but as I have indicated above they will require a sample , someone must be close to them , would be a benefit to any racers .
Old 04-13-2021, 06:59 PM
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Yes I did a search couldn't locate the thread , do you remember the cost at the time ?
Old 04-13-2021, 09:22 PM
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545svk
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Originally Posted by Schocki
Went for a drive on Saturday and here are the numbers:
  • ​​Speed 96 km/h or 60 mph
  • Cruise on
  • 1950 RPM on the tach
  • S4 2.2 final gear ratio
  • Stock rims and tires (Michelin Pilot Sport N3)
This is interesting, as my figures are: 2000 rpm @ 80 km/h and 2500 @ 100 km/h.

The speeds were measured on a Uniden GPS speedo.

Does this show that I have a different issue? Slippage in the gearbox and / or torque converter?

My car is also on stock wheels with 245 - 45 -16 Toyo Proxy tires.

I'll check again when I have completed my intake refresh.



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